503 lines
15 KiB
C
503 lines
15 KiB
C
/*
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* Copyright (c) Comtrol Corporation <support@comtrol.com>
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* All rights reserved.
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*
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* ISA-specific part separated from:
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* sys/i386/isa/rp.c,v 1.33 1999/09/28 11:45:27 phk Exp
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted prodived that the follwoing conditions
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* are met.
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* 1. Redistributions of source code must retain the above copyright
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* notive, this list of conditions and the following disclainer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials prodided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Comtrol Corporation.
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* 4. The name of Comtrol Corporation may not be used to endorse or
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* promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY COMTROL CORPORATION ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL COMTROL CORPORATION BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/fcntl.h>
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#include <sys/malloc.h>
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#include <sys/tty.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#define ROCKET_C
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#include <dev/rp/rpreg.h>
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#include <dev/rp/rpvar.h>
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#include <isa/isavar.h>
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/* ISA-specific part of CONTROLLER_t */
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struct ISACONTROLLER_T {
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int MBaseIO; /* rid of the Mudbac controller for this controller */
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int MReg0IO; /* offset0 of the Mudbac controller for this controller */
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int MReg1IO; /* offset1 of the Mudbac controller for this controller */
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int MReg2IO; /* offset2 of the Mudbac controller for this controller */
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int MReg3IO; /* offset3 of the Mudbac controller for this controller */
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Byte_t MReg2;
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Byte_t MReg3;
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};
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typedef struct ISACONTROLLER_T ISACONTROLLER_t;
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#define ISACTL(ctlp) ((ISACONTROLLER_t *)((ctlp)->bus_ctlp))
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/***************************************************************************
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Function: sControllerEOI
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Purpose: Strobe the MUDBAC's End Of Interrupt bit.
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Call: sControllerEOI(MudbacCtlP,CtlP)
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CONTROLLER_T *MudbacCtlP; Ptr to Mudbac controller structure
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CONTROLLER_T *CtlP; Ptr to controller structure
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*/
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#define sControllerEOI(MudbacCtlP,CtlP) \
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rp_writeio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,ISACTL(CtlP)->MReg2IO,ISACTL(CtlP)->MReg2 | INT_STROB)
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/***************************************************************************
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Function: sDisAiop
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Purpose: Disable I/O access to an AIOP
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Call: sDisAiop(MudbacCtlP,CtlP)
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CONTROLLER_T *MudbacCtlP; Ptr to Mudbac controller structure
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CONTROLLER_T *CtlP; Ptr to controller structure
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int AiopNum; Number of AIOP on controller
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*/
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#define sDisAiop(MudbacCtlP,CtlP,AIOPNUM) \
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{ \
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ISACTL(CtlP)->MReg3 &= rp_sBitMapClrTbl[AIOPNUM]; \
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rp_writeio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,ISACTL(CtlP)->MReg3IO,ISACTL(CtlP)->MReg3); \
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}
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/***************************************************************************
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Function: sEnAiop
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Purpose: Enable I/O access to an AIOP
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Call: sEnAiop(MudbacCtlP,CtlP)
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CONTROLLER_T *MudbacCtlP; Ptr to Mudbac controller structure
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CONTROLLER_T *CtlP; Ptr to controller structure
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int AiopNum; Number of AIOP on controller
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*/
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#define sEnAiop(MudbacCtlP,CtlP,AIOPNUM) \
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{ \
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ISACTL(CtlP)->MReg3 |= rp_sBitMapSetTbl[AIOPNUM]; \
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rp_writeio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,ISACTL(CtlP)->MReg3IO,ISACTL(CtlP)->MReg3); \
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}
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/***************************************************************************
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Function: sGetControllerIntStatus
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Purpose: Get the controller interrupt status
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Call: sGetControllerIntStatus(MudbacCtlP,CtlP)
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CONTROLLER_T *MudbacCtlP; Ptr to Mudbac controller structure
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CONTROLLER_T *CtlP; Ptr to controller structure
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Return: Byte_t: The controller interrupt status in the lower 4
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bits. Bits 0 through 3 represent AIOP's 0
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through 3 respectively. If a bit is set that
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AIOP is interrupting. Bits 4 through 7 will
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always be cleared.
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*/
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#define sGetControllerIntStatus(MudbacCtlP,CtlP) \
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(rp_readio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,ISACTL(CtlP)->MReg1IO) & 0x0f)
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static devclass_t rp_devclass;
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static CONTROLLER_t *rp_controller;
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static int rp_nisadevs;
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static int rp_probe(device_t dev);
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static int rp_attach(device_t dev);
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static void rp_isareleaseresource(CONTROLLER_t *ctlp);
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static int sInitController(CONTROLLER_T *CtlP,
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CONTROLLER_T *MudbacCtlP,
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int AiopNum,
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int IRQNum,
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Byte_t Frequency,
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int PeriodicOnly);
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static rp_aiop2rid_t rp_isa_aiop2rid;
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static rp_aiop2off_t rp_isa_aiop2off;
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static rp_ctlmask_t rp_isa_ctlmask;
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static int
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rp_probe(device_t dev)
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{
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int unit;
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CONTROLLER_t *controller;
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int num_aiops;
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CONTROLLER_t *ctlp;
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int retval;
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/*
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* We have no PnP RocketPort cards.
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* (At least according to LINT)
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*/
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if (isa_get_logicalid(dev) != 0)
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return (ENXIO);
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/* We need IO port resource to configure an ISA device. */
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if (bus_get_resource_count(dev, SYS_RES_IOPORT, 0) == 0)
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return (ENXIO);
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unit = device_get_unit(dev);
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if (unit >= 4) {
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device_printf(dev, "rpprobe: unit number %d invalid.\n", unit);
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return (ENXIO);
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}
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device_printf(dev, "probing for RocketPort(ISA) unit %d.\n", unit);
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ctlp = device_get_softc(dev);
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bzero(ctlp, sizeof(*ctlp));
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ctlp->dev = dev;
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ctlp->aiop2rid = rp_isa_aiop2rid;
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ctlp->aiop2off = rp_isa_aiop2off;
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ctlp->ctlmask = rp_isa_ctlmask;
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/* The IO ports of AIOPs for an ISA controller are discrete. */
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ctlp->io_num = 1;
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ctlp->io_rid = malloc(sizeof(*(ctlp->io_rid)) * MAX_AIOPS_PER_BOARD, M_DEVBUF, M_NOWAIT | M_ZERO);
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ctlp->io = malloc(sizeof(*(ctlp->io)) * MAX_AIOPS_PER_BOARD, M_DEVBUF, M_NOWAIT | M_ZERO);
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if (ctlp->io_rid == NULL || ctlp->io == NULL) {
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device_printf(dev, "rp_attach: Out of memory.\n");
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retval = ENOMEM;
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goto nogo;
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}
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ctlp->bus_ctlp = malloc(sizeof(ISACONTROLLER_t) * 1, M_DEVBUF, M_NOWAIT | M_ZERO);
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if (ctlp->bus_ctlp == NULL) {
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device_printf(dev, "rp_attach: Out of memory.\n");
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retval = ENOMEM;
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goto nogo;
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}
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ctlp->io_rid[0] = 0;
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if (rp_controller != NULL) {
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controller = rp_controller;
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ctlp->io[0] = bus_alloc_resource(dev, SYS_RES_IOPORT, &ctlp->io_rid[0], 0, ~0, 0x40, RF_ACTIVE);
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} else {
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controller = rp_controller = ctlp;
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ctlp->io[0] = bus_alloc_resource(dev, SYS_RES_IOPORT, &ctlp->io_rid[0], 0, ~0, 0x44, RF_ACTIVE);
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}
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if (ctlp->io[0] == NULL) {
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device_printf(dev, "rp_attach: Resource not available.\n");
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retval = ENXIO;
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goto nogo;
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}
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num_aiops = sInitController(ctlp,
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controller,
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MAX_AIOPS_PER_BOARD, 0,
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FREQ_DIS, 0);
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if (num_aiops <= 0) {
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device_printf(dev, "board%d init failed.\n", unit);
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retval = ENXIO;
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goto nogo;
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}
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if (rp_controller == NULL)
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rp_controller = controller;
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rp_nisadevs++;
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device_set_desc(dev, "RocketPort ISA");
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return (0);
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nogo:
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rp_isareleaseresource(ctlp);
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return (retval);
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}
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static int
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rp_attach(device_t dev)
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{
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int unit;
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int num_ports, num_aiops;
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int aiop;
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CONTROLLER_t *ctlp;
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int retval;
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unit = device_get_unit(dev);
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ctlp = device_get_softc(dev);
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#if notdef
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num_aiops = sInitController(ctlp,
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rp_controller,
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MAX_AIOPS_PER_BOARD, 0,
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FREQ_DIS, 0);
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#else
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num_aiops = ctlp->NumAiop;
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#endif /* notdef */
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num_ports = 0;
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for(aiop=0; aiop < num_aiops; aiop++) {
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sResetAiopByNum(ctlp, aiop);
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sEnAiop(rp_controller, ctlp, aiop);
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num_ports += sGetAiopNumChan(ctlp, aiop);
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}
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retval = rp_attachcommon(ctlp, num_aiops, num_ports);
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if (retval != 0)
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goto nogo;
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return (0);
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nogo:
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rp_isareleaseresource(ctlp);
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return (retval);
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}
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static void
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rp_isareleaseresource(CONTROLLER_t *ctlp)
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{
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int i;
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rp_releaseresource(ctlp);
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if (ctlp == rp_controller)
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rp_controller = NULL;
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if (ctlp->io != NULL) {
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for (i = 0 ; i < MAX_AIOPS_PER_BOARD ; i++)
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if (ctlp->io[i] != NULL)
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bus_release_resource(ctlp->dev, SYS_RES_IOPORT, ctlp->io_rid[i], ctlp->io[i]);
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free(ctlp->io, M_DEVBUF);
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}
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if (ctlp->io_rid != NULL)
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free(ctlp->io_rid, M_DEVBUF);
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if (rp_controller != NULL && rp_controller->io[ISACTL(ctlp)->MBaseIO] != NULL) {
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bus_release_resource(rp_controller->dev, SYS_RES_IOPORT, rp_controller->io_rid[ISACTL(ctlp)->MBaseIO], rp_controller->io[ISACTL(ctlp)->MBaseIO]);
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rp_controller->io[ISACTL(ctlp)->MBaseIO] = NULL;
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rp_controller->io_rid[ISACTL(ctlp)->MBaseIO] = 0;
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}
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if (ctlp->bus_ctlp != NULL)
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free(ctlp->bus_ctlp, M_DEVBUF);
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}
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/***************************************************************************
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Function: sInitController
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Purpose: Initialization of controller global registers and controller
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structure.
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Call: sInitController(CtlP,MudbacCtlP,AiopNum,
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IRQNum,Frequency,PeriodicOnly)
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CONTROLLER_T *CtlP; Ptr to controller structure
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CONTROLLER_T *MudbacCtlP; Ptr to Mudbac controller structure
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int AiopNum; Number of Aiops
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int IRQNum; Interrupt Request number. Can be any of the following:
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0: Disable global interrupts
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3: IRQ 3
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4: IRQ 4
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5: IRQ 5
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9: IRQ 9
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10: IRQ 10
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11: IRQ 11
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12: IRQ 12
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15: IRQ 15
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Byte_t Frequency: A flag identifying the frequency
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of the periodic interrupt, can be any one of the following:
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FREQ_DIS - periodic interrupt disabled
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FREQ_137HZ - 137 Hertz
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FREQ_69HZ - 69 Hertz
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FREQ_34HZ - 34 Hertz
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FREQ_17HZ - 17 Hertz
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FREQ_9HZ - 9 Hertz
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FREQ_4HZ - 4 Hertz
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If IRQNum is set to 0 the Frequency parameter is
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overidden, it is forced to a value of FREQ_DIS.
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int PeriodicOnly: TRUE if all interrupts except the periodic
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interrupt are to be blocked.
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FALSE is both the periodic interrupt and
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other channel interrupts are allowed.
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If IRQNum is set to 0 the PeriodicOnly parameter is
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overidden, it is forced to a value of FALSE.
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Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller
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initialization failed.
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Comments:
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If periodic interrupts are to be disabled but AIOP interrupts
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are allowed, set Frequency to FREQ_DIS and PeriodicOnly to FALSE.
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If interrupts are to be completely disabled set IRQNum to 0.
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Setting Frequency to FREQ_DIS and PeriodicOnly to TRUE is an
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invalid combination.
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This function performs initialization of global interrupt modes,
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but it does not actually enable global interrupts. To enable
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and disable global interrupts use functions sEnGlobalInt() and
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sDisGlobalInt(). Enabling of global interrupts is normally not
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done until all other initializations are complete.
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Even if interrupts are globally enabled, they must also be
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individually enabled for each channel that is to generate
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interrupts.
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Warnings: No range checking on any of the parameters is done.
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No context switches are allowed while executing this function.
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After this function all AIOPs on the controller are disabled,
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they can be enabled with sEnAiop().
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*/
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static int
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sInitController( CONTROLLER_T *CtlP,
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CONTROLLER_T *MudbacCtlP,
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int AiopNum,
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int IRQNum,
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Byte_t Frequency,
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int PeriodicOnly)
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{
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int i;
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int ctl_base, aiop_base, aiop_size;
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CtlP->CtlID = CTLID_0001; /* controller release 1 */
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ISACTL(CtlP)->MBaseIO = rp_nisadevs;
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if (MudbacCtlP->io[ISACTL(CtlP)->MBaseIO] != NULL) {
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ISACTL(CtlP)->MReg0IO = 0x40 + 0;
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ISACTL(CtlP)->MReg1IO = 0x40 + 1;
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ISACTL(CtlP)->MReg2IO = 0x40 + 2;
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ISACTL(CtlP)->MReg3IO = 0x40 + 3;
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} else {
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MudbacCtlP->io_rid[ISACTL(CtlP)->MBaseIO] = ISACTL(CtlP)->MBaseIO;
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ctl_base = rman_get_start(MudbacCtlP->io[0]) + 0x40 + 0x400 * rp_nisadevs;
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MudbacCtlP->io[ISACTL(CtlP)->MBaseIO] = bus_alloc_resource(MudbacCtlP->dev, SYS_RES_IOPORT, &CtlP->io_rid[ISACTL(CtlP)->MBaseIO], ctl_base, ctl_base + 3, 4, RF_ACTIVE);
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ISACTL(CtlP)->MReg0IO = 0;
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ISACTL(CtlP)->MReg1IO = 1;
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ISACTL(CtlP)->MReg2IO = 2;
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ISACTL(CtlP)->MReg3IO = 3;
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}
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#if 1
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ISACTL(CtlP)->MReg2 = 0; /* interrupt disable */
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ISACTL(CtlP)->MReg3 = 0; /* no periodic interrupts */
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#else
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if(sIRQMap[IRQNum] == 0) /* interrupts globally disabled */
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{
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ISACTL(CtlP)->MReg2 = 0; /* interrupt disable */
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ISACTL(CtlP)->MReg3 = 0; /* no periodic interrupts */
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}
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else
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{
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ISACTL(CtlP)->MReg2 = sIRQMap[IRQNum]; /* set IRQ number */
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ISACTL(CtlP)->MReg3 = Frequency; /* set frequency */
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if(PeriodicOnly) /* periodic interrupt only */
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{
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ISACTL(CtlP)->MReg3 |= PERIODIC_ONLY;
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}
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}
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#endif
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rp_writeio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,ISACTL(CtlP)->MReg2IO,ISACTL(CtlP)->MReg2);
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rp_writeio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,ISACTL(CtlP)->MReg3IO,ISACTL(CtlP)->MReg3);
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sControllerEOI(MudbacCtlP,CtlP); /* clear EOI if warm init */
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/* Init AIOPs */
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CtlP->NumAiop = 0;
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for(i=0; i < AiopNum; i++)
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{
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if (CtlP->io[i] == NULL) {
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CtlP->io_rid[i] = i;
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aiop_base = rman_get_start(CtlP->io[0]) + 0x400 * i;
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if (rp_nisadevs == 0)
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aiop_size = 0x44;
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else
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aiop_size = 0x40;
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CtlP->io[i] = bus_alloc_resource(CtlP->dev, SYS_RES_IOPORT, &CtlP->io_rid[i], aiop_base, aiop_base + aiop_size - 1, aiop_size, RF_ACTIVE);
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} else
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aiop_base = rman_get_start(CtlP->io[i]);
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rp_writeio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,
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ISACTL(CtlP)->MReg2IO,
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ISACTL(CtlP)->MReg2 | (i & 0x03)); /* AIOP index */
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rp_writeio1(MudbacCtlP,ISACTL(CtlP)->MBaseIO,
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ISACTL(CtlP)->MReg0IO,
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(Byte_t)(aiop_base >> 6)); /* set up AIOP I/O in MUDBAC */
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sEnAiop(MudbacCtlP,CtlP,i); /* enable the AIOP */
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CtlP->AiopID[i] = sReadAiopID(CtlP, i); /* read AIOP ID */
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if(CtlP->AiopID[i] == AIOPID_NULL) /* if AIOP does not exist */
|
|
{
|
|
sDisAiop(MudbacCtlP,CtlP,i); /* disable AIOP */
|
|
bus_release_resource(CtlP->dev, SYS_RES_IOPORT, CtlP->io_rid[i], CtlP->io[i]);
|
|
CtlP->io[i] = NULL;
|
|
break; /* done looking for AIOPs */
|
|
}
|
|
|
|
CtlP->AiopNumChan[i] = sReadAiopNumChan(CtlP, i); /* num channels in AIOP */
|
|
rp_writeaiop2(CtlP,i,_INDX_ADDR,_CLK_PRE); /* clock prescaler */
|
|
rp_writeaiop1(CtlP,i,_INDX_DATA,CLOCK_PRESC);
|
|
CtlP->NumAiop++; /* bump count of AIOPs */
|
|
sDisAiop(MudbacCtlP,CtlP,i); /* disable AIOP */
|
|
}
|
|
|
|
if(CtlP->NumAiop == 0)
|
|
return(-1);
|
|
else
|
|
return(CtlP->NumAiop);
|
|
}
|
|
|
|
/*
|
|
* ARGSUSED
|
|
* Maps (aiop, offset) to rid.
|
|
*/
|
|
static int
|
|
rp_isa_aiop2rid(int aiop, int offset)
|
|
{
|
|
/* rid equals to aiop for an ISA controller. */
|
|
return aiop;
|
|
}
|
|
|
|
/*
|
|
* ARGSUSED
|
|
* Maps (aiop, offset) to the offset of resource.
|
|
*/
|
|
static int
|
|
rp_isa_aiop2off(int aiop, int offset)
|
|
{
|
|
/* Each aiop has its own resource. */
|
|
return offset;
|
|
}
|
|
|
|
/* Read the int status for an ISA controller. */
|
|
unsigned char
|
|
rp_isa_ctlmask(CONTROLLER_t *ctlp)
|
|
{
|
|
return sGetControllerIntStatus(rp_controller,ctlp);
|
|
}
|
|
|
|
static device_method_t rp_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, rp_probe),
|
|
DEVMETHOD(device_attach, rp_attach),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t rp_driver = {
|
|
"rp",
|
|
rp_methods,
|
|
sizeof(CONTROLLER_t),
|
|
};
|
|
|
|
/*
|
|
* rp can be attached to an isa bus.
|
|
*/
|
|
DRIVER_MODULE(rp, isa, rp_driver, rp_devclass, 0, 0);
|